How to solve the common leakage problem of excavator seal kit

First of all, we need to solve the problem of pressure relief of the excavator seal kit, and solve the problems you encounter according to the actual situation.

1. Manufacturing and assembly factors:

All hydraulic and sealing components of the excavator are subject to tight dimensional tolerances, surface treatment, surface finish and geometric tolerances. The part itself has congenital leak points if it is out of tolerance during manufacturing, the piston radius of the cylinder, the depth or width of the seal groove, the size of the excavator seal kit hole, or out of roundness issues due to machining. Leaks can occur after or during use.

2. Assembly factors:

Harsh operation of hydraulic components should be avoided during assembly. Excessive force will cause deformation of parts, especially the deformation of cylinder block, sealing flange, etc. with copper rods, etc.; parts should be carefully inspected before assembly, and parts should be carefully inspected before assembly. Dip the part in a little hydraulic oil and push in gently. When cleaning, please use diesel oil, especially rubber parts such as oil seals, dust oil seals, O-rings, etc. If gasoline is used, it is easy to age and age. It loses its original elasticity and thus its sealing function.

3. Oil pollution and damage to excavator parts can be divided into four reasons:

Gas contamination, particulate contamination, water contamination and damage to parts, which can also lead to pressure relief.

4. Design factors:

The reliability of the excavator hydraulic system depends to a large extent on the design of the hydraulic system excavator seal kit and the selection of the oil seal. Due to the unreasonable selection of the sealing structure in the design, the selection of the oil seal does not meet the specifications, nor does it take into account the compatibility of the hydraulic oil with the sealing material, load conditions, pressure, working speed and changes in ambient temperature.

Excavator seal kit

These all directly or indirectly cause the hydraulic system to leak to varying degrees. In addition, since the working environment of the excavator will inevitably contain dust and impurities, a suitable dust-proof excavator oil seal should be selected in the design to prevent dust and other contaminants from entering the system, thereby damaging the excavator seal kit and contaminating oil leakage .